MEDIUM
OpenSSL Incorrect checks for malformed signatures
Published Jan 7, 2009
5.8
MEDIUMCVSS 2.0
EPSS 5.15%
Description
OpenSSL 0.9.8i and earlier does not properly check the return value from the EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys.
Affected products
No data.
OR
- ≤ 0.9.8h
- 0.9.1c
- 0.9.2b
- 0.9.3
- 0.9.3a
- 0.9.4
- 0.9.5
- 0.9.5
- 0.9.5
- 0.9.5a
- 0.9.5a
- 0.9.5a
- 0.9.6
- 0.9.6
- 0.9.6
- 0.9.6
- 0.9.6a
- 0.9.6a
- 0.9.6a
- 0.9.6a
- 0.9.6b
- 0.9.6c
- 0.9.6d
- 0.9.6e
- 0.9.6f
- 0.9.6g
- 0.9.6h
- 0.9.6i
- 0.9.6j
- 0.9.6k
- 0.9.6l
- 0.9.6m
- 0.9.7
- 0.9.7
- 0.9.7
- 0.9.7
- 0.9.7
- 0.9.7
- 0.9.7
- 0.9.7a
- 0.9.7b
- 0.9.7c
- 0.9.7d
- 0.9.7e
- 0.9.7f
- 0.9.7g
- 0.9.7h
- 0.9.7i
- 0.9.7j
- 0.9.7k
- 0.9.7l
- 0.9.8
- 0.9.8a
- 0.9.8b
- 0.9.8c
- 0.9.8d
- 0.9.8e
- 0.9.8f
- 0.9.8g
No data.
Red Hat Enterprise Linux 2.1
openssl-0:0.9.6b-49
Fixed · RHSA-2009:0004
Red Hat Enterprise Linux 2.1
openssl095a-0:0.9.5a-34
Fixed · RHSA-2009:0004
Red Hat Enterprise Linux 2.1
openssl096-0:0.9.6-34
Fixed · RHSA-2009:0004
Red Hat Enterprise Linux 3
openssl-0:0.9.7a-33.25
Fixed · RHSA-2009:0004
Red Hat Enterprise Linux 3
openssl096b-0:0.9.6b-16.49
Fixed · RHSA-2009:0004
Red Hat Enterprise Linux 4
openssl-0:0.9.7a-43.17.el4_7.2
Fixed · RHSA-2009:0004
Red Hat Enterprise Linux 4
openssl096b-0:0.9.6b-22.46.el4_7
Fixed · RHSA-2009:0004
Red Hat Enterprise Linux 5
openssl-0:0.9.8b-10.el5_2.1
Fixed · RHSA-2009:0004
Red Hat Enterprise Linux 5
openssl097a-0:0.9.7a-9.el5_2.1
Fixed · RHSA-2009:0004
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 2.1 | openssl-0:0.9.6b-49 | Fixed | RHSA-2009:0004 |
| Red Hat Enterprise Linux 2.1 | openssl095a-0:0.9.5a-34 | Fixed | RHSA-2009:0004 |
| Red Hat Enterprise Linux 2.1 | openssl096-0:0.9.6-34 | Fixed | RHSA-2009:0004 |
| Red Hat Enterprise Linux 3 | openssl-0:0.9.7a-33.25 | Fixed | RHSA-2009:0004 |
| Red Hat Enterprise Linux 3 | openssl096b-0:0.9.6b-16.49 | Fixed | RHSA-2009:0004 |
| Red Hat Enterprise Linux 4 | openssl-0:0.9.7a-43.17.el4_7.2 | Fixed | RHSA-2009:0004 |
| Red Hat Enterprise Linux 4 | openssl096b-0:0.9.6b-22.46.el4_7 | Fixed | RHSA-2009:0004 |
| Red Hat Enterprise Linux 5 | openssl-0:0.9.8b-10.el5_2.1 | Fixed | RHSA-2009:0004 |
| Red Hat Enterprise Linux 5 | openssl097a-0:0.9.7a-9.el5_2.1 | Fixed | RHSA-2009:0004 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
5.8 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
5.15% 0.05146
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.05146
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.15% (0.05146) | 92.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.19% (0.05188) | 91.37th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.07% (0.01066) | 75.71th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.95% (0.02953) | 77.42th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.07% (0.01066) | 76.16th | v4 (v2025.03.14) |
| Dec 17, 2024 | 9.26% (0.09261) | 94.68th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.75% (0.00748) | 80.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.75% (0.00748) | 78.02th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.56% (0.07559) | 92.87th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.56% (0.07559) | 92.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.56% (0.07559) | 81.11th | v2 (v2022.01.01) |
Weaknesses (1)
References (47)
- http://lists.apple.com/archives/security-announce/2009/May/msg00002.html vendor-advisoryx_refsource_APPLE
- http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00013.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00014.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=123859864430555&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=124277349419254&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=127678688104458&w=2 vendor-advisoryx_refsource_HP
- http://secunia.com/advisories/33338 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/33394 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/33436 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/33557 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/33673 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/33765 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/34211 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/35074 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/35108 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/39005 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://security.gentoo.org/glsa/glsa-200902-02.xml vendor-advisoryx_refsource_GENTOO
- http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.544796 vendor-advisoryx_refsource_SLACKWARE
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-250826-1 vendor-advisoryx_refsource_SUNALERT
- http://support.apple.com/kb/HT3549 x_refsource_CONFIRM
- http://support.avaya.com/elmodocs2/security/ASA-2009-038.htm x_refsource_CONFIRM
- http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=837653 x_refsource_CONFIRM
- http://voodoo-circle.sourceforge.net/sa/sa-20090123-01.html x_refsource_CONFIRM
- http://www.ocert.org/advisories/ocert-2008-016.html x_refsource_MISC
- http://www.openssl.org/news/secadv_20090107.txt x_refsource_CONFIRM
- http://www.redhat.com/support/errata/RHSA-2009-0004.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/archive/1/499827/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/502322/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/33150 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1021523 vdb-entryx_refsource_SECTRACK
- http://www.us-cert.gov/cas/techalerts/TA09-133A.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.vmware.com/security/advisories/VMSA-2009-0004.html x_refsource_CONFIRM
- http://www.vupen.com/english/advisories/2009/0040 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2009/0289 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2009/0362 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2009/0558 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2009/0904 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2009/0913 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2009/1297 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2009/1338 vdb-entryx_refsource_VUPENVendor Advisory
- https://access.redhat.com/security/cve/CVE-2008-5077 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=476671 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2008-5077
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6380 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9155 vdb-entrysignaturex_refsource_OVAL
- https://usn.ubuntu.com/704-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2008-5077
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Jan 7, 2009
Updated Aug 7, 2024
Reserved Nov 14, 2008
Link CVE-2008-5077
CISA Vulnrichment
Updated n/a